Sprout Interference With TV Antenna

We noticed a very curious thing today.   When I use my sprout (it's not sleeping) it causes the signal from the TV antenna (multiple-array HD antenna in the attic just above me) to break up badly.   The more I interact with the sprout whether via keyboard, mouse or touch - the  worse the signal breaks up.    If I turn off the mouse and keyboard, and just interact with the screen, it is still an issue.
Any thoughts, other than moving the sprout to the other side of the house away from the antenna?     This occurs even when I have the projector and touchmat off.  
Anyone else have any similar issues?
Tracy

Thanks for your response.    My HP Envy 360 laptop also seems to interfere.   We are conducting some tests to determine under what conditions the Sprout or the 360 interfere (foggy, rainy, when the antenna may be having trouble with signal strength anyway).   Another test we plan is to change the frequency of our wireless, as other research on the internet has suggested changing that.    It is very odd as I had an Envy desktop there before and we don't recall any such interference.  
The only difference is the type of wireless cards in these two computers.  One is a dual band wireless ac 2x2, and the other is a dual band wireless a/b/g/n 2x2 with MIMO.   Not sure if this makes a difference but i suspect so.    I work for HP and my work laptop doesn't interfere and it is in the same general area (below the antenna) as the others.
When I solve it I will post back!
Thanks
Tracy

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